What projects should Dongfeng Nissan Xuanyi do for 40,000 kilometers?

It depends on whether you have had an overhaul in 4W. If you have done it, just do the normal maintenance. Replace the oil filter.

1 month 1000 km: change the oil and oil filter.

3 months and 5000 kilometers: change the oil and oil filter.

6 months 10000 expressway: oil replacement, mechanical oil filter and air filter.

Suggestion: engine internal cleaning+protection, of course, this can also be done at 150000.

12 month, 20,000 km: change the oil, oil filter, air filter and air conditioner filter, clean the throttle valve and clean the fuel injector.

Replace oil, oil filter, air filter, overnight filter, transmission oil (front axle, rear axle, transfer gear), brake oil (power steering oil), antifreeze (spark plug), clean fuel injector, three-way catalysis and air intake system. These are just suggestions. According to the condition of your car, 4W is usually given a major maintenance.

6W and 10w are almost the same as changing oil, oil filter, air filter, air conditioner filter and cleaning throttle and nozzle. It is recommended to replace the belt and tensioner.

Hehe, you can look at these according to the comparison you usually do ... you can do something on them, hehe.